laser_riflev1.2.zip

This download looks like an addon. You need to extract the downloaded zip and put the addon folder in your Garry's Mod addons folder. You should end up with a directory structure similar to below:

• steamapps
  • common
    • garrysmod
      • garrysmod
        • addons
          • garrysmod <-- Addon folder!
            • e.g.
            • lua
            • maps
            • materials
            • models
            • etc

• garrysmod/
  • lua/
    • effects/
      • laser_ring/
        • init.lua
    • weapons/
      • weapon_laserrifle/
        • shared.lua
  • materials/
    • models/
      • weapons/
        • v_laser/
          • irifle_bumpSpec.vtf
          • irifle_rgbv.vmt
          • irifle_rgbv.vtf
          • newstock.vmt
          • newstock.vtf
          • pulse_mg.vmt
          • pulse_mg.vtf
          • pulse_mg_ref.vtf
          • V_IRifle.vtf
          • V_IRifle_mask.vtf
  • models/
    • weapons/
      • v_laser.dx80.vtx
      • v_laser.dx90.vtx
      • v_laser.mdl
      • v_laser.sw.vtx
      • v_laser.vvd
  • sound/
    • laser/
      • dep.wav
      • holster.wav
      • laser1.wav
      • laser2.wav
      • laser3.wav
      • reload.wav
      • zoom.wav
      • zoom2-bad.wav
      • zoomout.wav

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